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Dermatology · Vesiculobullous disorders: bullosis diabeticorum
Sample itemA man with long-standing diabetes develops several tense, non-inflamed blisters on the dorsum of the feet overnight without trauma. The blister fluid is sterile. What is the expected course?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
D. Spontaneous healing within 2 to 5 weeks with protective care
Bullosis diabeticorum gives sudden tense non-inflammatory blisters on acral skin in people with diabetes, usually sterile and self-healing. Management is protection, avoiding rupture and optimising glycaemic control. Infection should be excluded if the base turns inflamed.
Option by option
A. Requires systemic immunosuppression
Immunosuppression is not required.
B. Progression to pemphigus vulgaris
It does not progress to pemphigus.
C. Indicates cellulitis requiring surgery
It is a sterile blister, not cellulitis.
D. Spontaneous healing within 2 to 5 weeks with protective care (correct)
Correct. They typically heal over weeks with care.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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